Looking for something like "Ubel Blatt", "Alive" and "Claymore"

You know, those manga where the hero/heroine is wallowing in their own angst.... that they have to avenge something and lead a life of blood, violence, anger, sorrow etc. If anyone can tell me some titles like that, please do!

________________The only light in eternal darkness is heroism... and manga

Crimson Cross lots of angst. Lots of sorrow. Lots of suffering. Even though it is a oneshot, it is some pretty depressing stuff. Dogs Intro to bullets and carnage Dogs: Bullets & Carnage lots of angst, lots of revenge. Don't miss this one. Dolls not so much angst, but there is a lot of gore and an interesting plotSidooh blood and revenge